Added a note that project is still is development

Author: coderarjob

README.md

@@ -12,6 +12,9 @@ This is a hardware project based on Atmega8A microcontroller. This project came
 personal need for a demo board to test my new oscilloscope. I plan to create a complete PCB
 along with firmware in this repo.
 
+**Caution:**
+The project is still _**in development**_ and schematic, PCB is not yet finalized. The screenshots are from prototype board.
+
 ### Screenshots
 
 ##### 1. Serial RS232 (TTL Level) decoding test
@@ -68,6 +71,7 @@ along with firmware in this repo.
 - [X] Firmware: Separate arch independent codes
 - [X] Unittests: Add unittests for utils
 - [X] Unittests: Add unittests for existing tests
+- [ ] Manufacturing: Build the PCB board
 
 ## Building prerequisites